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April Weather in Jefferson, United States

Last updated: June 24, 2025

In Jefferson, United States, the average temperature in April hovers around 17°C (63°F). Be prepared for a range of temperatures, as the minimum can dip to -2°C (29°F) while the maximum may rise to a warm 31°C (87°F). You'll want to pack your rain gear, too, as 108 mm (4.2 in) of precipitation occurs over 9 days. With an average humidity of 82%, expect a somewhat muggy atmosphere—ideal for cozy indoor activities!

April Temperature in Jefferson

In April in Jefferson, the average temperature is 17°C (63°F). Maximum temperatures can reach 31°C (87°F), while minimums can drop as low as -2°C (29°F). Be prepared for a wide range of temperatures and pack accordingly for your travels!

April Weather in Jefferson: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in Jefferson, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Jefferson, April typically has an average temperature of 17°C (63°F), with highs reaching up to 31°C (87°F) and lows dropping to around -2°C (29°F).
JanFebMarAprMayJunJulAugSepOctNovDec455155637277807975665248
Data source: Temperature data for Jefferson generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

April Precipitation in Jefferson

In Jefferson in April, the precipitation amount is 108 mm (4.2 in) spread over 9 days.

April Precipitation Trends in Jefferson

The chart displays monthly precipitation patterns in Jefferson, with values for each month alongside April’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how April’s conditions compare to those of other months. In Jefferson, April typically receives around 108 mm (4.2 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec96120821081191171181321397580131
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Jefferson

In Jefferson in April, humidity is 82%. With an average temperature of 17°C (63°F), this humidity feels like a warm blanket wrapping around you—comfortable yet heavy, making outdoor activities more taxing and requiring frequent breaks for hydration.

April Average Humidity in Jefferson

This chart illustrates the average monthly humidity levels in Jefferson, with April’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In April, average humidity in Jefferson is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%85%84%82%83%82%80%74%75%79%87%87%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Jefferson

In Jefferson in April, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Jefferson.

Maximum UV Index Levels in Jefferson for April

The chart shows the monthly maximum UV Index (UVI) for Jefferson in April, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In April, the maximum UV index in Jefferson typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec46810111111109864
Data source: Jefferson April UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How April Weather in Jefferson Compares to Other Months

Weather in Jefferson varies notably across the year, with each month offering distinct climate conditions. This page compares April’s weather to other months in Jefferson, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Jefferson, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather7°C (46°F)96 mm (3.8 inches)86%moderate
February Weather10°C (51°F)120 mm (4.7 inches)85%high
March Weather13°C (55°F)82 mm (3.2 inches)84%very high
April Weather17°C (63°F)108 mm (4.2 inches)82%very high
May Weather22°C (72°F)119 mm (4.7 inches)83%extreme
June Weather25°C (77°F)117 mm (4.6 inches)82%extreme
July Weather27°C (80°F)118 mm (4.6 inches)80%extreme
August Weather26°C (79°F)132 mm (5.2 inches)74%very high
September Weather24°C (75°F)139 mm (5.5 inches)75%very high
October Weather19°C (66°F)75 mm (2.9 inches)79%very high
November Weather11°C (53°F)80 mm (3.2 inches)87%high
December Weather9°C (49°F)131 mm (5.2 inches)87%moderate

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